11387992 has 96 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 4173120.

The previous prime is 11387953. The next prime is 11388017. The reversal of 11387992 is 29978311.

Its product of digits (27216) is a multiple of the sum of its prime factors (189).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81859 + ... + 81997.

It is an arithmetic number, because the mean of its divisors is an integer number (299250).

Almost surely, 2^11387992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11387992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14364000).

11387992 is an abundant number, since it is smaller than the sum of its proper divisors (17340008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11387992 is a wasteful number, since it uses less digits than its factorization.

11387992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 178 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 11387992 is about 3374.6099033814. The cubic root of 11387992 is about 224.9826620385.

The spelling of 11387992 in words is "eleven million, three hundred eighty-seven thousand, nine hundred ninety-two".